CVE-2017-5650

Description

In Apache Tomcat 9.0.0.M1 to 9.0.0.M18 and 8.5.0 to 8.5.12, the handling of an HTTP/2 GOAWAY frame for a connection did not close streams associated with that connection that were currently waiting for a WINDOW_UPDATE before allowing the application to write more data. These waiting streams each consumed a thread. A malicious client could therefore construct a series of HTTP/2 requests that would consume all available processing threads.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 28.07% Top 5%
Vendor Advisory gentoo.org
Affected: Apache Software Foundation Apache Tomcat
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/97531 third party advisory vdb entry
https://security.gentoo.org/glsa/201705-09 vendor advisory
https://security.netapp.com/advisory/ntap-20180614-0001/
http://www.securitytracker.com/id/1038217 vdb entry
https://lists.apache.org/thread.html/d24303fb095db072740d8154b0f0db3f2b8f67bc91a0562dbe89c738%40%3Cannounce.tomcat.apache.org%3E mailing list
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
https://lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E mailing list

Frequently Asked Questions

What is the severity of CVE-2017-5650?
CVE-2017-5650 has been scored as a high severity vulnerability.
How to fix CVE-2017-5650?
To fix CVE-2017-5650, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5650 being actively exploited in the wild?
It is possible that CVE-2017-5650 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~28% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-5650?
CVE-2017-5650 affects Apache Software Foundation Apache Tomcat.
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